EP0018733B1 - Dispositif pour séparer des couvercles empilés - Google Patents

Dispositif pour séparer des couvercles empilés Download PDF

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Publication number
EP0018733B1
EP0018733B1 EP80301108A EP80301108A EP0018733B1 EP 0018733 B1 EP0018733 B1 EP 0018733B1 EP 80301108 A EP80301108 A EP 80301108A EP 80301108 A EP80301108 A EP 80301108A EP 0018733 B1 EP0018733 B1 EP 0018733B1
Authority
EP
European Patent Office
Prior art keywords
suction plate
lid
lids
rim
rolls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80301108A
Other languages
German (de)
English (en)
Other versions
EP0018733A1 (fr
Inventor
Ulrich Mehlhaus
Willi Seitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT80301108T priority Critical patent/ATE7008T1/de
Publication of EP0018733A1 publication Critical patent/EP0018733A1/fr
Application granted granted Critical
Publication of EP0018733B1 publication Critical patent/EP0018733B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2807—Feeding closures

Definitions

  • This invention relates to the separation of lids having beaded rims and more particularly large round lids pressed from cardboard, for example of the type used with drum-shaped bulk containers for detergent powders.
  • the object of the present invention is to make mechanical de-stacking and individual separation of lids possible.
  • German Gebrauchmuster 1785233 describes a method and apparatus for separating material in the form of leaves or foils stored in a magazine, using a vacuum device for lifting the leaves past a constriction in the magazine.
  • U.S. Patent No. 3,275,189 describes an apparatus for separating nested pocketed trays by deforming the trays under vacuum
  • U.S. Patent No. 3,322,301 describes a similar device. None of these prior art devices are effective in the separation of lids having beaded rims with which the present invention is concerned.
  • DE-A-2,8b7,891 describes an apparatus for separating articles arranged in a stack.
  • each article is removed from the bottom of the stack, with the result that the effect of gravity is to assist two articles to stick together, rather than to assist them to separate.
  • wedged lids can be separated by deformation, that is to say light radial compression of at least one zone of the external rim bead if said deformation is applied in a zone extending around part of the lid periphery.
  • the deformation can be achieved for example by pressing one or more pressure rolls against the outside of the rim bead in order to cause localised deformation and at the same time rotating the lid between the rolls.
  • the lid may be stationary and the rolls rotated around the lid. Localised compression of the rim bead causes outward deformation in advance of the roll so as to release the hold of the first lid on the second one.
  • the wedged rim bead of the second lid is displaced from the deformed rim bead. This local deformation of the rim bead is temporary only and the applied force is insufficient to damage the rim bead.
  • lids are removed from the stack vertically or diagonally upwards, being gripped by a suction means or suction plate, the open side of the rim bead being lowermost. Wedged lids lifted simultaneously fall back onto the stack when the hold between lids is released.
  • the lid magazine can be inclined, the lids being removed by the suction means upwardly and at an angle of 10-30° to the horizontal.
  • Lid diameters are generally between about 20 and 35 cm and board is about 1 mm thick.
  • the rim bead projects about 1 to 1.3 cm above the top or outside surface of the flat central lid portion and is curved with radius of approximately 0.5 to 0.8 cm. This curvature is continuous with an outside rim bead surface having approximately the shape of a conical frustum and extending about 0.5 cm below the lower or inside surface of the central lid portion.
  • the outside rim bead surface is at an angle of from 93 to 100° to the central lid portion.
  • the groove formed by the rim bead is about 1.5 cm wide.
  • the pressure rolls are pressed against the rim bead such that the line of contact between the periphery of the rolls and the outside bead surface defines approximately the surface of a conical frustum.
  • the pressure rolls can be conical to complement the conicity of the outside bead surface and rotatable about axes parallel to the direction of travel of the suction means. More than one pressure roll may be arranged in one plane within the apparatus laterally of the path of travel of lids when gripped by their upper surfaces by the suction means.
  • Resilient and movable suspension of the suction means for example by means of a universal joint or other joint means permitting lateral displacement of the suction means at right angles to the direction of lid travel with minimal bearing friction, is advantageous for compensating eccentric gripping of lids.
  • the lids which in this part of the lift stroke are rotated by the suction means are centered together with the suction means by the rolls and are locally deformed.
  • the suction means normally made of rubber or of a similar flexible material, to be adapted to have a resilient zone at right angles to the direction of lid travel for providing at least temporary displacement of the gripping surface of the suction means on the lid and thus of the lid itself as lateral pressure is applied by one pressure roll or as the result of the centering action of several rolls spaced regularly about the periphery of lid and elastically pressed against the lid. Compensation of eccentricity can also be provided by arranging the pressure rolls in a ring or cage mounted resiliently, that is to say adapted for lateral movement in one plane.
  • the individual rolls are simultaneously pivoted from the side to bear with limited force against the rim bead of the lid.
  • Means acting to limit the force of compression such as springs, pneumatic cylinders and the like prevent damage which might otherwise be caused by pronounced eccentricity or by variations in the dimensions and shape of the rim bead.
  • Additional resilient suspension and/or construction of the suction means is advantageous. In such a construction having three conical rolls pivotable against the lid one rotation of the lid will generally suffice to release the hold between a first lid and a second simultaneously lifted lid.
  • the use of a sensor device to detect whether one or more lids are held by the suction means is possible.
  • the signal from said sensor device can cause rotation of the suction means to continue and the rolls to be pivoted into position. If only one lid is lifted from the stack the signal from the sensor device causes rotation of the suction means not to be actuated and the rolls not to be pivoted into position.
  • rolls pressing laterally against the lower edge of the rim bead and co-operating with a second roll lying against the curvature of the rim bead may also be used.
  • FIG 1 a magazine (2) is shown in which lids (1) lie in a vertical stack on plate (3) which is raised to bring the uppermost lid approximately to a predetermined position.
  • a suction plate (11) is mounted on a lower rod (12) connected through the universal joint (13) with an upper rod (14). To prevent undesired oscillations of the suction plate the lower rod (12) can be elastically held in a central position by springs, not shown.
  • Rod (14) is rotatably mounted within a beam (15) which is upwardly movable by means of sliding guides (16) on rails (17), upward movement being obtained by a lifting means (18). The latter is arranged on an arm (19) which is rotatable about a column (20).
  • the rod (14) can be driven by a motor (21) and driving means (22).
  • the suction plate (11) is lowered to the indicated position (11a). By means of a vacuum the uppermost lid (1) is gripped by the flat central portion. The suction plate (11) is then raised to the position shown in full lines. A number of other lids, whose rim beads have wedged together in the stack, may be lifted simultaneously. Whilst in this position the suction plate (11) is rotated by means of the motor (12) and the rim bead of the lifted lid is locally deformed by the rolls (23), the zone of deformation extending around the lid periphery as a result of rotation of the lid (1). The hold between lids is thus released and undesired simultaneously lifted lids (1 a) fall back onto the stack. The suction plate (11) is raised still further and by rotation of arm (19) is pivoted laterally for example into position (11b). In this position vacuum is interrupted and the lid may be conveyed by means of a suitable chute, not shown, for positioning on a container.
  • the pressure rolls (23), of which there are preferably three, are located on arms (24) and are pivoted or pushed against the rim bead.
  • the pressing action is resilient, for example, by means of springs or pneumatic drive means (25) such that no damage occurs even with lids (1) gripped eccentrically to the rolls (23) or having rim beads with varying shape or diameter.
  • the rolls (23) can also have, in addition to the resilient pressure means, an elastically deformable surface and, for example, contain a layer of foamed rubber beneath a closed surface.
  • a sensor device (26) in the form of a probe capable of differentiating inductively whether one or more lids (1) are present under the suction plate.
  • Other suitable sensing means may also be used.
  • the sensor device initiates rotation of the suction plate (11) and rolls (23).
  • the travel motion of the suction plate can be slowed down or interrupted for as long as is necessary.
  • FIG. 2 shows the rim region of three wedged lids (1).
  • the rim beads (31) differ slightly in shape as a result of being wedged together.
  • Conical roll (33) presses against the outside surface (32) of the top lid held by the suction plate (11) not shown in this Figure.
  • roll (33) moves around the periphery of the lid or when the lid is rotated against the roll the local deformation at each zone of contact causes the hold to be released and the wedged rim beads fall from or are displaced from the groove (34) formed by the rim bead.
  • Roll (33) is rotated only by contact with the outside bead surface (32) and does not require to be independently driven.
  • Figure 3 shows a different arrangement of the rolls, wherein a cylindrical roll (43) presses against the bottom edge of the outside bead surface (32) whilst a second roll (44) bears down on the rim bead 31 and acts as an abutment means.
  • the magazine is inclined at an angle of about 150 to the horizontal and lids are removed obliquely at the same angle.
  • the inclined stack of lids (1) rests against two rolls (51) slowly rotatable in bearings (52, 53) by drive means not shown. This in itself provides a measure of loosening in the stack.
  • advance of lids by means of plate (3) and placement of the suction plate (11) on the uppermost lid can re-establish wedging between the lids.
  • pressure rolls (23) which are elastically pressed against the rim bead of the removed lid.
  • Use is also made of three pressure rolls regularly spaced around the periphery of the lid.
  • the lids (1) from the inclined magazine cannot be gripped accurately by their centres by suction plate (11) eccentricity must likewise be compensated in this arrangement. At least in that region of the path of travel of the suction plate (11) in which the pressure rolls (23) are pressed against the rim bead of lid (1 ), the lid (1) and the suction plate (11) must be centerable between the pressure rolls (23) without excessive force on the bead rim being exerted for example by the bottom pressure rolls.
  • the apparatus is therefore provided with a counterweight (not shown) which is effective in at least this position of the suction plate and which can, for example, be located in the housing (54) wherein are further located the drive means for providing the travel motion of the suction plate (11) and rotation when the rolls (23) are pressed against the lid.
  • simultaneously removed lids also fall back on to the stack.
  • the top end of rolls (51) is arranged such as to continue affording support to the falling lids.
  • the pressure rolls (23) may also be arranged as an extension of rolls ( 15).
  • the suction plate (11) is withdrawn to the position (11c) as shown. At this point the lid is released by interruption of the vacuum. The lid falls onto the chute (55) and moves to a station (not shown) for placing on containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • De-Stacking Of Articles (AREA)

Claims (9)

1. Un appareil pour séparer des couvercles arrondis empilés (1) munis d'une saillie au bord par une déformation des couvercles comprenant un magasin (2) pour les couvercles empilés (1) et une plaque d'aspiration (11) mobile dans la direction de l'axe du magasin (2) pour retirer chaque couvercle du dessus (1) du magasin, caractérisé en ce que durant son élévation la plaque d'aspiration (11) est amenée à atteindre une certaine position en tournant et dans cette position se trouve(nt) disposé(s) latéralement par rapport à la plaque d'aspiration (11) au moins un rouleau de pression (23, 33, 43) pouvant pivoter autour des saillies du bord des couvercles soulevés (1) pour une déformation temporaire de celles-ci.
2. Un appareil selon la revendication 1, caractérisé en ce que la plaque d'aspiration (11) et/ou le(s) rouleau(x) de pression (23, 33, 43) sont montés d'une façon élastique pour une compensation d'une prise excentrique du couvercle (1) par la plaque d'aspiration (11).
3. Un appareil selon l'une des revendications 1 et 2, caractérisé en ce que le rouleau de pression (23, 33) est pressé contre la saillie du bord de sorte que la ligne de contact entre la périphérie du rouleau et la surface extérieure (32) de la saillie du bord décrit approximativement la surface d'un tronc conique.
4. Un appareil selon la revendication 3, caractérisé en ce que les rouleaux de pression (23, 33) peuvent tourner autour d'axes parallèles à la direction de déplacement de la plaque d'aspiration (11) et sont coniques, la conicité de ceux-ci étant complémentaire avec la surface extérieure (32) de la saillie du bord.
5. Un appareil selon les revendications 1 ou 2, caractérisé en ce qu'au moins un rouleau de pression (47) peut être pressé de haut en bas contre la saillie du bord (31) et au moins un autre rouleau de pression (43) peut être pressé latéralement contre le bord inférieur de la surface extérieure (32).
6. Un appareil selon l'une des revendications 3 à 5, caractérisé en ce qu'au moins trois rouleaux de pression (23, 33) pouvant pivoter latéralement contre la surface extérieure sont disposés régulièrement autour de la périphérie du couvercle ou de la plaque d'aspiration (11).
7. Un appareil selon l'une des revendications 1 à 6, caractérisé en ce que la plaque d'aspiration (11), dans une position prédéterminée dans laquelle les rouleaux de pression (23, 33, 43) peuvent pivoter contre la périphérie du couvercle, est munie de moyens de commande (21, 22) pendant au moins une rotation complète.
8. Un appareil selon l'une des revendications 1 à 7, caractérisé en ce que la plaque d'aspiration (11) dans la position dans laquelle elle est la plus éloignée du magasin (2) peut pivoter latéralement et en ce qu'on fournit latéralement par rapport au parcours de la plaque d'aspiration un toboggan-guide sur lequel le couvercle tombe quand le vide dans la plaque d'aspiration est interrompu.
9. Un appareil selon l'une des revendications 1 à 7, caractérisé en ce que le magasin est disposé dans une position inclinée et comprend deux rouleaux (51) pouvant tourner dans la même direction contre lesquels les surfaces extérieures des saillies du bord des couvercles (1) reposent et la plaque d'aspiration (11) est mobile en position inclinée, étant retenue au moyen d'un montage élastique et d'un contrepoids dans une position centrale entre les rouleaux de pression (23) pressés élastiquement contre la saillie du bord du couvercle enlevé par la plaque d'aspiration (11). ).
EP80301108A 1979-04-09 1980-04-08 Dispositif pour séparer des couvercles empilés Expired EP0018733B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80301108T ATE7008T1 (de) 1979-04-09 1980-04-08 Vorrichtung zum trennen gestapelter deckel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2914289A DE2914289C2 (de) 1979-04-09 1979-04-09 Verfahren und Vorrichtung zum Vereinzeln aufeinander gestapelter runder Deckel mit Randwulst
DE2914289 1979-04-09

Publications (2)

Publication Number Publication Date
EP0018733A1 EP0018733A1 (fr) 1980-11-12
EP0018733B1 true EP0018733B1 (fr) 1984-04-11

Family

ID=6067857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80301108A Expired EP0018733B1 (fr) 1979-04-09 1980-04-08 Dispositif pour séparer des couvercles empilés

Country Status (4)

Country Link
EP (1) EP0018733B1 (fr)
AT (1) ATE7008T1 (fr)
DE (1) DE2914289C2 (fr)
ES (1) ES8200298A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013130514A1 (fr) * 2012-02-27 2013-09-06 The Coca-Cola Company Distributeur de boissons automatique avec système de pose de couvercle sur les gobelets et système d'identification des boissons
US9150366B2 (en) 2012-08-08 2015-10-06 The Coca-Cola Company Automated dispensing system with magnetic drive device
US9227830B2 (en) 2012-02-27 2016-01-05 The Coca-Cola Company Automated beverage dispensing system with ice and beverage dispensing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311828A1 (de) * 1983-03-15 1984-09-20 Maschinen- und Stahlbau Julius Lippert GmbH & Co, 8487 Pressath Vorrichtung zum fuellen und entleeren von kapseln fuer keramisches gut sowie zum gleichzeitigen stapeln und entstapeln der kapseln
DE3309740C2 (de) * 1983-03-15 1988-10-20 Maschinen- und Stahlbau Julius Lippert GmbH & Co, 8487 Pressath Vorrichtung zum Füllen und Entleeren von Kapseln für keramisches Gut sowie zum gleichzeitigen Stapeln und Entstapeln der Kapseln
DE202008010273U1 (de) 2008-08-01 2010-01-07 Autefa Automation Gmbh Behälter und Verpackungseinrichtung
ITAR20090025A1 (it) * 2009-05-13 2010-11-13 Tiber Pack S R L Macchina coperchiatrice, particolarmente per vaschette e cestini in materiale deformabile e similari
DE102016226220A1 (de) * 2016-12-27 2018-06-28 Robert Bosch Gmbh Vorrichtung zum taktweise Zuführen von Gegenständen in eine Einrichtung
CN109335069A (zh) * 2018-08-31 2019-02-15 安徽金三环金属科技有限公司 一种吸管加料机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1785233U (de) * 1957-07-31 1959-03-19 Karl Weber Vorrichtung zum abnehmen und foerdern eines blattes, einer folie od. dgl.
US3122267A (en) * 1962-01-30 1964-02-25 Illinois Tool Works Method and apparatus for separating a flexible lid from a stack of lids
US3275189A (en) * 1964-08-20 1966-09-27 Fmc Corp Tray feeding apparatus
US3322301A (en) * 1966-03-15 1967-05-30 Diamond Int Corp Method and apparatus for denesting articles by suction means
DE2258055A1 (de) * 1972-11-27 1974-07-11 Kaupert Kg Dr Ing Vorrichtung zum vereinzeln von in einem magazin aufeinandergestapelten verpackungseinsaetzen
DE2807891A1 (de) * 1978-02-24 1979-09-06 Focke Pfuhl Verpack Automat Verfahren und vorrichtung zum abteilen von aus folien, platten o.dgl. gebildeten formlingen von einem stapel derselben

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013130514A1 (fr) * 2012-02-27 2013-09-06 The Coca-Cola Company Distributeur de boissons automatique avec système de pose de couvercle sur les gobelets et système d'identification des boissons
US9141562B2 (en) 2012-02-27 2015-09-22 The Coca-Cola Company Automated beverage dispensing system with cup lidding and beverage identification
US9227830B2 (en) 2012-02-27 2016-01-05 The Coca-Cola Company Automated beverage dispensing system with ice and beverage dispensing
US9994340B2 (en) 2012-02-27 2018-06-12 The Coca-Cola Company Automated beverage dispensing system with ice and beverage dispensing
US9150366B2 (en) 2012-08-08 2015-10-06 The Coca-Cola Company Automated dispensing system with magnetic drive device

Also Published As

Publication number Publication date
DE2914289A1 (de) 1980-10-23
DE2914289C2 (de) 1983-09-29
EP0018733A1 (fr) 1980-11-12
ES490364A0 (es) 1981-11-01
ATE7008T1 (de) 1984-04-15
ES8200298A1 (es) 1981-11-01

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